>To be illegal, information sharing has to violate some law. This does not. It is simply not illegal to share information with Russia citizens, the Russian government, or anyone affiliated with Russia.

I can't tell if you're intentionally stating falsehoods with the hope nobody will fact check you, or if you're just completely ignorant of the law. He was accused and convicted of acting as an unregistered foreign agent. Is it absolutely, unquestionably illegal to be a political operative for a foreign government and not register. For good reason. He broke the law, he went to prison. It was entirely illegal.

And NONE of that has anything to do with the original question or answer. Which is: what proof is there that he gave polling data to the Russians. Which I provided, and you still haven't refuted.